( 269 ) 
INDEX TO VOLUME XVIII. 
A. 
Acarians, Researches on the, 113. 
Alg®, Microscopic Characters of a New 
Order of, 40. 
American Exhibition, the Microscopes 
at the. By J. G. Hunt, M.D., 21. 
Amoeba, Is it a Cannibal? 201. 
Angle of Aperture, some additional Re- 
marks on the Measurement of. By 
F. H. Wenham, 187, 212. 
Ants, on some Points in the Anatomy 
of. By Sir John Lubbock, Bart., 121. 
Axes of Doubly Refracting Sub- 
stances, on a New Arrangement for 
distinguishing the. By II. C. Sorby, 
F.R.S., 209. 
B. 
Bacteria, Professor Tyndall’s Re- 
searches on, 47. 
the Influence of Light upon the 
Development of, 244. 
and Vibrios, 152. 
Balsam-mounted Objects, a Simple De- 
vice for the Illumination of, &c. By 
Surgeon J. J. Woodward, U.S. 
Army, 01. 
Batrachians, the Development of, with- 
out Metamorphosis, 250. 
Beatty, the Death of; 253. 
Bedwell, Francis A., M.A., on the 
Building Apparatus of Mclicerta rin- 
gens, 214. 
Blood, the Microscopic Study of 
Human, 39. 
Peculiar Appearance of the, 42. 
in Infants, Microscopy of the, 248. 
Blood-corpuscles, Observations on the 
Structure of the Red, of Living Py- 
renaematous Vertebrates. By W. II. 
Hammond. 147. 
the Minute Structure of 
Red, 242. 
Botany, Cryptogamie, at Harvard Uni- 
versity, U.S. A., 112. 
VOL. XVIII. 
British Association, General conclusion 
of the President of, 154. 
Brownian Motions, the Thermo-dyna- 
mic Origin of the. By the Rev. J. 
Delsaulx, 1. 
an Explanation of the. By 
AV. N. Hartley, 8. 
C. 
Chlorochytrium, a New Parasitic, 243. 
Chlorophyll Granules, the Effect of 
Frost on, 157. 
Contents of Recent Journals, 11G. 
Coral Growth, the Rate of, 192. 
Correspondence : — 
Hunt, Dayid, M.D., 158, 162. 
Jones, T. Rupert, 49. 
AVenham, F. H., 206. 
Crystals, Dry-mounting of. By Mr. 
R. S. Peet, 252. 
Cucurbitace®, Structure of the Testa 
in, 157. 
D. 
Dallinger, Rev. W. II., and J. Drys- 
dale, M.D., on the Development of 
the Ovum, 86. 
Darwin, Mr. F., on the Protoplasmic 
Filaments of the Teasel, 198. 
Delsaulx, the Rev. J., the Thermo- 
dynamic Origin of the Brownian 
Motions, 1. 
Dentine Structure and Development of 
Vascular, 36. 
Diatomace®, an Essay on the Classifi- 
cation of. By Paul Petit. Trans- 
lated by F. Kitton, 10, 65. 
Diatcmist, the Death of a, 252. 
Diatoms (Fossil) from South Australia, 
46. 
from Honduras. By Herr A. 
Grunow, with Notes by F. Kitton, 
165. 
AVliere they may be found, 202. 
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